Motor-controlling device.



No. 876,441. PATENTED JAN. 14, 1908. w. E. DATE. MOTOR CONTROLLINGDEVICE.

APPLICATION FILED MAR. 14} 1907.

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No. 876,441. PATENTED JAN. 14, 1908. W. E. DATE.

MOTOR CONTROLLING DEVIOE.

APPLICATION FILED MAR.14, 1907.

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No. 876,441. PATENTED JAN. 14, 1908. W. E. DATE.

MOTOR CONTROLLING DEVICE- r APPLICATION FILED MAR. 14, 1907.

6 SHEETS-SHEET 3.

No. 876,441. PAT'ENTED JAN. 14, 1908. w. E. DATE. MOTOR CONTROLLINGDEVICE.

6 SHEETS-SHEET 4.

APPLICATION FILED MAR. 14,1907.

W. B. DATE.

MOTOR CONTROLLING D EVIGE. APPLICATION FILED 2.14.1907.

No. 876,441. PATENTED JAN. 14, 1908.

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PATENTED JAN. 14, 1908.

W. B. DATE. MOTOR CONTROLLING DEVICE.

APPLICATION FILED MAR. 14, 1907.

- travel thereon.

with the ends of the drum, is screw threaded as at 31, and a threadednut 32 is arranged to This nut is provided with a pair of arms 33, whichengage-upon either side of the rod 25, whereby when the nut is rotated,the arm will be moved from its central position, and at either end ofthe threaded portion, a split collar 36 is clamped upon the shaft 4, andeach collar is provided with a dog 37, arranged to engage a dog 34,mounted on the nut 32, to rotate the nut. It will be seen that as theshaft 5 is rotated, the threaded nut will move up and down thereon, andat one limit of its travel, will be en-' gaged by the dog 37 of one ofthe split rings, and when so engaged, it will be rotated, thereby movingarm 25 against the tension of the coiled spring 27, and at the same timemoving the drum 11 past its center. i

In order that the drum 11 may not be moved too far either direction bythe driving shaft 8, I provide a connecting and disconnecting mechanismfor the clutch member 6, which comprises a yoke 38, having inwardlyextending pins 39, operating in a channel 40 in the hub of the clutchmember 6. This-yoke is pivoted to the casing, and at its outer end isprovided with a handle 41, wherebythe same may be manually operated.Pivotally supported by the ends of the yoke is an arm 42, which isprovided with a pin 43, operating'in an opening in a projecting arm'44,extending from the top of the casing, and interposed between the arm 42and the member 44 is a coiled sprin 45. By this construction the ends ofthe yo lre will be held raised or lowered. Extending downwardly from theyoke 38 is an arm 46, carrying a roller- 47 arranged to be engaged by acam 48 on the drum, in event the drum is moved too far in eitherdirection. In operation it the drum is moved too far in eitherdirection, the cam 48 will engage the roller 47, moving the arm 46outwardly, thereby throwing the ends of the yoke 38 downwardly anddisconnecting the two clutch members 6 and 9.

Mounted within the casing of the controller and secured to the backthereof by means of suitable bolts or screws 49 is a base 50 ofinsulating material. The contact fingers 51 of the controller aremounted on supports- 52 secured to the base 50 and each support 'isprovided with a binding post 53, whereby the proper electricalconductors may be electrically connected with the contact fingers 51.

The switches for controlling the direction of operation of the motor aswell as the switch for controlling the circuit therethrough are mountedupon asuitable base 54, formed of soapstone or the like. Mounted uponthis base 54, upon the u per portion thereof, are a pair of solenoi s 55.and

56, secured upon the base by bolts, passed through lugs on the framethereof. The core 57 of the solenoid 55 has secured thereto a tail rod58 upon which are mounted a pair of switch members 59 and 60, arrangedto bridge the contacts 61 and 62, and 63 and 64, respectively, alsomounted upon the base 54. The core 65 of the solenoid 56 is alsoprovided with a tail rod 66, which carries a pair of switch members 67and 68 adapte to bridge the contacts 69 and 70, and 71 and 72,respectively. The cores 65 and 57 are connected by an interlocking rod73 pivoted at 74 on the base 54, whereby both cores can not be raised atthe same time. A third solenoid 75 is secured upon the base 54, and thecore 76 thereof is provided with a tail rod 77, provided with a pair ofdisks 78 and 79, forming switch members, arranged to bridge the contacts80 and 81, and 82 and 83 respectively; Suitable bindin posts are alsoprovided upon the base 54 w ereby the various circuit connections of thesolenoids and the contacts thereof are made.

An understanding of the o eration of the controller will be better ha byreference to-Fig. 11. In this figure to. properly distinguish thevarious contacts 13 of the drum, I, have used exponents in addition tothe numeral 13. I have also used in connection with the numeral 51,exponents for identifying the various contact fingers of the contro ler.The first four contacts ofthe controller control the circuit through thewindingof the solenoids 55 and 56, while the last four contacts of thecontroller control a resistance 84, in circuit with the armature 85 ofthe motor. The shunt field 86 of the motor is permanently connectedbetween the ositive side 87 and negative side 88 of the ine, by theconductors 89 and 90. In operation, in starting the motor, the 'drum 7is moved fromits central position by the hand wheel 6, until the contact13 engages the contact finger 51. This movement carries the drum 7 asfar in one direc- 110 tion of its travel as it will go, and the nut 33moves along the shaft 5, until the dog 32 is in engagement with one ofthe dogs 37. The closing of the contact l3 with the contact 51 closesthe circuit from the positive 5 side 87- of the line, through conductor91, to contact finger 51 The contact 13 is of sufficient length, so thatit will engage contact 51 at the same time that the contact 13 en agescontact fin er 51, and 120 circuit'will t erefore be closed cm thecontact 51 through contact 13 through the drum 7,. to contact 13, thencethrough contact 51, bywconductor 92, to contact 93 of the solenoid 56and from there by conductor 90 to the negative side 88 of the hue.

This energizes thewinding of the SO1enOi 130 of the switch 94, acrossone arm 95 of said I switch, to the contact 96; thence by conductors 97,98, and 99,- through the winding ance 84, by conductor 100, to contact63,

thence by conductor 101, to contact 72,

' across the switch 68, to contact 71, thence by conductor 102, throughthe armature 85 of the motor by conductor 103, to contact 64, by

conductor 104, to contact 69, across the switch 67 to contact 70, andthence by con-' ductor 90, to the o posite main 88. This starts themotor an the shaft 5 is driven in a reverse direction permitting the nut32, and with it the drum 11, to slowly move back to its normal position,under the influence of the spring 27. As the drum slowly moves back, toits central position, the contact 13 will engage the contact finger 51and the contact 13 will pass off the contact finger 51. A new circuitwill therefore be established for the winding of the solenoid 56 fromthe positive side 87, by conductor 91, to contact finger 51 and contact13*, through the drum to contact 13 thence by contact finger 51, byconductor 105,

' through the resistance 106, and by conductors 107 and 99, to thewinding 56. The insertion of the resistance 106 inseries, with thewindin of the solenoid 56, cuts down the stren th 0 thesolenoid 56, tosuch an extent-t at while itwill maintain the contactsv 67 and 68closed, it will notraise'its core to close the contacts in event-thecore drops. A continued movement of the drum 7 will cause the contacts13, 13 and 13 to respectively engage the contact fingers 51, 51 and 51,thereby cuttin out the resistance 84, section by section, om the motorcircuit. The motor will now be operating at full speed ,.and willcontinue to so operate, until the traveling nut 32 reaches the oppositelimit of its travel, when the dog 34 will be engaged by the opposite dog32, and the nut w1ll be rotated, carrying with it the rod 25, and movinthe drum ast its center in its opposite direction. en the drum reachesthe limit of its movement in the op- ,posite direction, the contact 13will engage the contact finger 51, closing a circuit through the windingof I thesolenoid 55, from the conductor .91, to the contact finger 51thence to the contact 13 through. the

drum to contact 13, thence to contact fin ger 51, by conductor 108,across the arm 109 of the knife switch, by conductors 110, 111 throughthe winding of the solenoid 55,

thence by conductor 112, and conductor,

90, to the negative side 88 of the line. Just prior to the time that thecontact 13 engages contact finger 51, the contact 13 passes off contactfinger 51", thereby open--v ing thecircuit of the solenoid 56. The clos-'ing of the solenoid 55 causes the same to attract its core and closethe switches 59 and tact 13 passes off the finger 51.

60. This closes a reverse circuit through the armature of the motor,from the conductor 91, through the resistance 84-, by

conductor 100, across the switch 60, by con ductor 103, through thearmature 85, b conductors 102 and 113, across the switc 59, and thenceby conductors 112 and 90,

to the negative side 88 of the line. The motor will thus start in areverse direction, reversing thedirection of operation of the shaft 4and permitting the drum 11 to slowl move back to its central positionunder 1; e influence of the spring 27. As the contact 13 moves off thecontact finger-51, the contact 13 will engage the contact finger 51inserting the resistance 114 in series with the winding of the solenoid55, thereby cuttin down the stren th of said solenoid to suc a degreethat w ile it will maintain the switches 59 and 60 in a closed position,it will not close said switches in event they open. The controller willthus continue to periodically reverse the direction of operation of themotor as long as the switch 94 is closed.

Supposing that as soon as the contact 13 enga es the contact fin er 51,the knife switc 94 is opened until t e blade 95 thereof bridges thecontacts 115 and 116. A circuit is immediately established from oneterminal of the armature by conductor 117, through the winding of thesolenoid 75, thence by conductor l 18, across the switch blade 95 and byconductor 119, to the opposite terminal of the armature. This energizesthe winding of the solenoid and the switches 78 and 79 are closed.Therefore, While the circuit through the solenoid 55 is o ened at theswitch 94, it is closed from con uctor 108,-by conductor 119 across theswitch 79, and. thence byconductor' 120 to the conducto'i' The motorwill continue to operate under these'conditions, until the drum has beenmoved to a position where the contact 13 engages the contact finger 51,and the concontact 13 passes off the finger 51, the circuit through thesolenoid 55 is'opened, which opens the switches 59 and 60, and when thecontact 13 engages contact finger 51, it

establishes a circuit through the winding 56,

which closes the switches 68 and 67 permitting current to flow throughthe armature in When the changing the direction of operation of themotor, and means for stopping the same at a predetermined point.

2. The combination with a motor, of a continuously operated controllertherefor, having a movable member, the direction of movement of which isperiodically changed to periodically change the direction of operationof the motor, and means for stopping the motor at a predetermined point.

8. The combination with a motor, of a plurality of switches forcontrolling the direction of operation of the motor, continuouslyoperated means for causing said switches to operate alternately, andmeans for stopping said motor at a predetermined point.

4. The combination with a motor, of a plurality of switches forcontrolling the direction of operation of the motor, of means forcausing said switches to operate alternately, and a switch forcontrolling the circuit through said motor controlling switches, ar-

ranged to remain closed upon the stopping of the motor, until saidswitch controlling means reaches a predetermined condition.

5. The combination with a motor, of a plurality of switches forcontrolling the direction of operation of the same, a movable member forcausing said switches to operate alternately and adapted to insert andgradually out out a resistance in the motor circuit upon change ofdirection of operation thereof, and means for stopping said motor at apredetermined point.

6. The combination with a motor, of a plurahty of switches forcontrolling the direction of operation thereof, a plurality ofelectroresponsive devices for operatingsaid switches, a movable memberfor alternately closing the circuit through said electro-responsive'devices, a switch for controlling the circuit through saidelectro-responsive devices, and an electro-responsive device foroperating said switch, the circuit of which is closed when the mainswitch is opened.

7. The combination with a motor, of a plurality of switches forcontrolling the direction of operation of the same, a plurality ofelectro-responsive devices for operating said switches, a controlleradapted when moved in one direction, to close an operative circuitthrough .one of said electro-responsive devices, and when moved in anopposite direction to close an o erative circuit, through,

the other of said e ectro-responsive devices and means for stopping themotor at a predetermined point.

8. The combination with a motor, of a plurality of switches forcontrolling the direction of operation thereof, a plurahty ofelectroresponsive devices for operating said switches, a movable memberfor alternately closing an operative circuit through saidelectro-resfionsive devices, a main switch controlling t e circuitthrough said electro-responsive devices, and an auxiliary switch forcontrolling a shunt around said main switch.

9. The combination with a motor, of a controller for periodicallychanging the direction of operation thereof, driven from the mechanismoperated by the motor, and means for automatically disconnecting saidcontroller from its driving mechanism, under predetermined conditions.

10. The combination with a motor, of a continuously operating controllerfor periodically changing the direction of operation of the motor, meansfor operatin said control- 101, and means for automatical y disconnecting the same from its operation under predetermined conditions.

11. The combination with a motor of means thrown into operativerelation, at will, by the operation of a suitable instrumentality forautomatically stopping the motor when the same operates to apredetermined limit.

12. The combination with a motor of electro-magnetically operatedreversing switches therefor, and a relay device thrown into operationwhen a suitable instrumentality is operated for maintaining the circuitthrough the magnet of said switch, until the motor operates to apredetermined limit.

13. The combination with a motor, of electro-magnetically operatedreversing switches therefor, a controller for controlling the operationthereof, and a relay thrown into operation when a suitableinstrumentality is operated for maintaining the circuit relations of themagnets of said reversing switches, until the motor operates to apredetermined limit.

14. The combination with a motor of electro-magnetically operatingswitches for controlling the direction of operation thereof, means forautomatically energizing the magnets of said switches, a relay switchclosed upon the operation of a suitable instrumentality, and adapted tomaintain the circuit relations of the magnets of the reversing switches,until the motor has operated to a predetermined limit.

15. The combination with a motor, of a plurality of electro-magneticallyoperated reversing switches for controlling the direction of operationthereof, a continuously operated controller for controlling alternatelyenergizin magnets of said switches, a 'relay switc closed upon theoperation of a suitable instrumentalit'y to maintain the circuitrelation of the magnets of the reversing switches, until the motor hasoperated to a predetermined limit.

16. The combinati -.1 with a motor, of a plurality ofelectro-magnetically reversing switches for controlling the direction ofoperation thereof, a hand switch for controllin the circuit relation ofthe magnet of said switches, means for alternately energizing themagnetsof said switches, and a relay operator actuates a suita leinstrumentality to maintain the circuit relation of the magnets of saidreversing switches, until the motor has operated to a predeterminedlimit.

18. The combination with a motor, of elec tro-magnetically operatedreversing switches therefor, a drum controller 9 crating alternately inopposite directions or controlling the operation of said reversingswitches, and

a relay closed upon the actuation of a suitable instrumentality formaintaining the circuit relation of the magnets of said reversingswitches, until the motor has operated to a predetermined limit.

19. The combination with a motor, of electro-magnetically operatedreversing switches for controlling the direction of o eration thereof, adrum controller for contro ling the operation of said switchescomprising a shaft driven from the motor, a 'drum; loosely mountedthereon, a traveling member on said shaft connected with said drumandmeans at each limit of travel of said member for connecting the samewith the shaft to cause the drum to rotate with the shaft, and

' a relay operated upon the actuation of a suitable instrumentality formaintaining the 'circuit relation of the magnets of the reversingswitches, until the motor has operated to a predetermined limit.

20. The combination with a motor of elec- I tro-magneticall operatedreversing switches, a drum controlier having mechanical means whereby itmay be operated directly or indirectly from the motor, and adapted tocontrol the operation of the reversing switches to periodically changethe direction of operation of the motor, an electro-magneticallyoperated rela switch, a-manually actuating switch by w ich the magnet ofthe relay switch is connected across the armature terminals, said relayswitch being arranged to maintain the circuit relation of the reversingswitches, until the motor has operated to a predetermined limit. I

In witness whereof I have hereunto subscribed my name in the presence oftwo witnesses.

WILLIAM E. DATE.

Witnesses:

W. PERRY HAHN, J. O. LOOMIS.

